This Is Us has been widely considered the heir apparent to Parenthood, the heart-wrenching family drama that ended more than two years ago -- and with good reason! Both shows tug at your heartstrings, make you reach for those tissues and by the end of each episode, have you hugging your loved ones.

Parenthood stars Mae Whitman and Dax Shepard, who played Amber Holt and Crosby Braverman respectively, spoke with ET about the frequent comparisons between their beloved series and television’s newest hit.

“I’ve only seen the first episode,” Whitman admitted to ET at the CHiPs premiere in Los Angeles on Tuesday of This Is Us. “But the device of the [multiple time periods] is amazing and I feel like we’re all one big family. It’s like another generation of us.”

“I think it’s definitely on the table. I think once more time passes where we can tell a whole new set of different stories, we’ll get back into it,” Whitman said of the chances of another Parenthood installment.

Though she was unsure what a potential Parenthood reboot would look like -- if it would be a Netflix series or a movie, for instance -- Whitman was open to returning to the fray.

“I defer to [creator] Jason Katims on that one,” Whitman said. “There are so many things you could do because you have so many generations of stories being told. I’m always down!”

Whitman and Shepard reunite on the big screen in the CHiPs reboot, and the co-stars spoke about keeping things in the Parenthood family.

“He feels like my second father in real life,” Whitman said of her friendship with Shepard. “I call him ‘D.D.,’ that’s his nickname, and he calls me ‘B.B.’ It’s pretty twisted.”

Whitman shared that she’s often sought out “any kind of advice” that she’s needed. “He’s probably one of the smartest people I’ve ever met,” she continued. “I remember really early on, I played him in Scrabble and he kicked my a** so much it wasn’t even funny. It was like 1,000 points to 10. It was so bad.”

Shepard, who was accompanied by his real-life wife and co-star, Kristen Bell, was excited to reconnect with his Parenthood cast at the CHiPs premiere.

“I know Joy Bryant’s coming because we were married. She was to -- my TV wife!” the 42-year-old actor said, joking, “Sometimes TV marriages last longer than real marriages.”